<template>
    <div id="aCoursesList" class="bg-fa of">
        <!-- /课程详情 开始 -->
        <section class="container">
            <section class="path-wrap txtOf hLh30">
                <a href="/" title class="c-999 fsize14">首页</a>
                \
                <a href="/course" title class="c-999 fsize14">{{course.subjectLevelOne}}</a>
                \
                <span class="c-333 fsize14">{{ course.subjectLevelTwo }}</span>
            </section>
            <div>
                <article class="c-v-pic-wrap" style="height: 357px">
                    <section class="p-h-video-box" id="videoPlay">
                        <img
                             :src="course.cover"
                             :alt="course.title"
                             class="dis c-v-pic"
                             height="355px"
                             width="630px"
                             />
                    </section>
                </article>
                <aside class="c-attr-wrap">
                    <section class="ml20 mr15">
                        <h2 class="hLh30 txtOf mt15">
                            <span class="c-fff fsize24">{{ course.title }}</span>
                        </h2>
                        <section class="c-attr-jg">
                            <span class="c-fff">价格：</span>
                            <b class="c-yellow" style="font-size: 24px"
                               >￥{{ course.price }}</b
                                >
                        </section>
                        <section class="c-attr-mt c-attr-undis">
                            <span class="c-fff fsize14"
                                  >主讲： {{ course.teacherName }}&nbsp;&nbsp;&nbsp;</span
                                >
                        </section>
                        <section class="c-attr-mt of">
                            <span class="ml10 vam">
                                <em class="icon18 scIcon"></em>
                                <a class="c-fff vam" title="收藏" href="#">收藏</a>
                            </span>
                        </section>
                        <section v-if="isbuyCourse || Number(course.price) === 0"
                        class="c-attr-mt">
                            <a  href="#" title="立即观看" class="comm-btn c-btn-3"
                               >立即观看</a
                                >
                        </section>
                        <section v-else
                        class="c-attr-mt">
                            <a @click="createOrders()" href="#" title="立即购买" class="comm-btn c-btn-3"
                               >立即购买</a
                                >
                        </section>
                    </section>
                </aside>
                <aside class="thr-attr-box">
                    <ol class="thr-attr-ol clearfix">
                        <li>
                            <p>&nbsp;</p>
                            <aside>
                                <span class="c-fff f-fM">销量</span>
                                <br />
                                <h6 class="c-fff f-fM mt10">{{ course.buyCount }}</h6>
                            </aside>
                        </li>
                        <li>
                            <p>&nbsp;</p>
                            <aside>
                                <span class="c-fff f-fM">课时数</span>
                                <br />
                                <h6 class="c-fff f-fM mt10">{{ course.lessonNum }}</h6>
                            </aside>
                        </li>
                        <li>
                            <p>&nbsp;</p>
                            <aside>
                                <span class="c-fff f-fM">浏览数</span>
                                <br />
                                <h6 class="c-fff f-fM mt10">{{ course.viewCount }}</h6>
                            </aside>
                        </li>
                    </ol>
                </aside>
                <div class="clear"></div>
            </div>
            <!-- /课程封面介绍 -->
            <div class="mt20 c-infor-box">
                <article class="fl col-7">
                    <section class="mr30">
                        <div class="i-box">
                            <div>
                                <section
                                         id="c-i-tabTitle"
                                         class="c-infor-tabTitle c-tab- title"
                                         >
                                    <a name="c-i" class="current" title="课程详情">课 程 详 情</a>
                                </section>
                            </div>
                            <article class="ml10 mr10 pt20">
                                <div>
                                    <h6 class="c-i-content c-infor-title">
                                        <span>课程介绍</span>
                                    </h6>
                                    <div class="course-txt-body-wrap">
                                        <section class="course-txt-body">
                                            <p v-html="course.description">
                                                {{ course.description }}
                                            </p>
                                        </section>
                                    </div>
                                </div>
                                <!-- /课程介绍 -->
                                <div class="mt50">
                                    <h6 class="c-g-content c-infor-title">
                                        <span>课程大纲</span>
                                    </h6>
                                    <section class="mt20">
                                        <div class="lh-menu-wrap">
                                            <menu id="lh-menu" class="lh-menu mt10 mr10">
                                                <ul>
                                                    <!-- 文件目录 -->
                                                    <li class="lh-menu-stair" v-for="chapter in chapterVideoList" :key="chapter.id">
                                                        <a
                                                           href="javascript: void(0)"
                                                           :title="chapter.title"
                                                           class="current-1"
                                                           >
                                                            <em class="lh-menu-i-1 icon18 mr10"></em>{{chapter.title}}
                                                        </a>
                                                        <ol class="lh-menu-ol" style="display: block">
                                                            <li class="lh-menu-second ml30" v-for="video in chapter.children" :key="video.id">
                                                                <a :href="'/player/'+video.videoSourceId" target="_blank">
                                                                    <span class="fr" v-if="video.isFree===true">
                                                                        <i class="free-icon vam mr10">免费试听</i>
                                                                    </span>
                                                                    <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em
                                                                        >{{video.title}}
                                                                </a>
                                                            </li>
                                                        </ol>
                                                    </li>
                                                </ul>
                                            </menu>
                                        </div>
                                    </section>
                                </div>
                                <!-- /课程大纲 -->
                            </article>
                        </div>
                    </section>
                </article>
                <aside class="fl col-3">
                    <div class="i-box">
                        <div>
                            <section class="c-infor-tabTitle c-tab-title">
                                <a title href="javascript:void(0)">主讲讲师</a>
                            </section>
                            <section class="stud-act-list">
                                <ul style="height: auto">
                                    <li>
                                        <div class="u-face">
                                            <a href="#">
                                                <img
                                                     :src="course.avatar"
                                                     width="50"
                                                     height="50"
                                                     alt
                                                     />
                                            </a>
                                        </div>
                                        <section class="hLh30 txtOf">
                                            <a class="c-333 fsize16 fl" href="#">{{course.teacherName}}</a>
                                        </section>
                                        <section class="hLh20 txtOf">
                                            <span class="c-999">{{course.intro}}</span>
                                        </section>
                                    </li>
                                </ul>
                            </section>
                        </div>
                    </div>
                </aside>
                <div class="clear"></div>
            </div>
        </section>
        <!-- /课程详情 结束 -->

        <div class="mt50 commentHtml">
            <div>
                <h6 class="c-c-content c-infor-title" id="i-art-comment">
                    <span class="commentTitle">课程评论</span>
                </h6>
                <section class="lh-bj-list pr mt20 replyhtml">
                    <ul>
                        <li class="unBr">
                            <aside class="noter-pic">
                                <img
                                     width="50"
                                     height="50"
                                     class="picImg"
                                     src="~/assets/img/avatar-boy.gif"
                                     />
                            </aside>
                            <div class="of">
                                <section class="n-reply-wrap">
                                    <fieldset>
                                        <textarea
                                                  name=""
                                                  v-model="comment.content"
                                                  placeholder="输入您要评论的文字"
                                                  id="commentContent"
                                                  ></textarea>
                                    </fieldset>
                                    <p class="of mt5 tar pl10 pr10">
                                        <span class="fl"
                                              ><tt
                                                   class="c-red commentContentmeg"
                                                   style="display: none"
                                                   ></tt
                                            ></span>
                                        <input
                                               type="button"
                                               @click="addComment()"
                                               value="回复"
                                               class="lh-reply-btn"
                                               />
                                    </p>
                                </section>
                            </div>
                        </li>
                    </ul>
                </section>
                <section class="">
                    <section class="question-list lh-bj-list pr">
                        <ul class="pr10">
                            <li v-for="comment in data.list" :key="comment.id">
                                <aside class="noter-pic">
                                    <img
                                         width="50"
                                         height="50"
                                         class="picImg"
                                         :src="comment.avatar"
                                         />
                                </aside>
                                <div class="of">
                                    <span class="fl">
                                        <font class="fsize12 c-blue">{{ comment.nickname }}</font>
                                        <font class="fsize12 c-999 ml5">评论：</font></span
                                        >
                                </div>
                                <div class="noter-txt mt5">
                                    <p>{{ comment.content }}</p>
                                </div>
                                <div class="of mt5">
                                    <span class="fr"
                                          ><font class="fsize12 c-999ml5">{{
                                        comment.gmtCreate
                                        }}</font></span
                                        >
                                </div>
                            </li>
                        </ul>
                    </section>
                </section>
                <!-- 公共分页 开始 -->
                <div class="paging">
                    <!-- undisable这个class是否存在，取决于数据属性hasPrevious -->
                    <a
                       :class="{ undisable: !data.hasPrevious }"
                       href="#"
                       title="首页"
                       @click.prevent="gotoPage(1)"
                       >首</a
                        >
                    <a
                       :class="{ undisable: !data.hasPrevious }"
                       href="#"
                       title="前一页"
                       @click.prevent="gotoPage(data.current - 1)"
                       >&lt;</a
                        >
                    <a
                       v-for="page in data.pages"
                       :key="page"
                       :class="{
                               current: data.current == page,
                               undisable: data.current == page,
                               }"
                       :title="'第' + page + '页'"
                       href="#"
                       @click.prevent="gotoPage(page)"
                       >{{ page }}</a
                        >
                    <a
                       :class="{ undisable: !data.hasNext }"
                       href="#"
                       title="后一页"
                       @click.prevent="gotoPage(data.current + 1)"
                       >&gt;</a
                        >
                    <a
                       :class="{ undisable: !data.hasNext }"
                       href="#"
                       title="末页"
                       @click.prevent="gotoPage(data.pages)"
                       >末</a
                        >
                    <div class="clear" />
                </div>
                <!-- 公共分页 结束 -->
            </div>
        </div>

    </div>


</template>

<script>
import courseApi from '@/api/course'
import comment from "@/api/commoned";
import orderApi from "@/api/order";
export default {
   asyncData({ params, error }) {
     return courseApi.getFrontCourseInfo(params.id)
        .then(response => {
          return {
            course: response.data.data.courseWebVo,
            chapterVideoList: response.data.data.chapterVideoList,

          }
        })
   },
   methods: {
       //获取课程详细信息
       getCourseInfo() {
         courseApi.getFrontCourseInfo(this.course.courseId).then((resp) => {
           this.chapterList = resp.data.data.chapterVideoList;
           this.course = resp.data.data.courseWebVo;
           this.isbuyCourse = resp.data.data.isBuy;
           this.course.courseId = resp.data.data.courseWebVo.id;
           console.log("isbuyCourse:")
           console.log(this.isbuyCourse)
         });
       },
       initComment() {
         comment
           .getPageList(this.page, this.limit, this.course.courseId)
           .then((response) => {
             this.data = response.data.data;
             console.log(response.data.data);
           });
       },
       addComment() {
         this.comment.courseId = this.course.courseId;
         this.comment.teacherId = this.course.teacherId;
         comment.addComment(this.comment).then((response) => {
           if (response.data.success) {
             this.$message({
               message: "评论成功",
               type: "success",
             });
             this.comment.content = "";
             this.initComment();
           }
         });
       },
       gotoPage(page) {
         comment.getPageList(page, this.limit, this.$route.params.id).then((response) => {
           this.data = response.data.data;
         });
       },

       //订单
       //生成订单的方法
       createOrders(){
           orderApi.createOrder(this.course.courseId).then(resp=>{
               //获取返回订单号
               resp.data.data.orderNo
               //跳转订单显示页面
               this.$router.push({path:'/orders/'+resp.data.data.orderNo})
           })
       },


     },
     data() {
       return {
         chapterList: [],
         course: {
           courseId: "",
         },
         data: {},
         page: 1,
         limit: 4,
         total: 10,
         comment: {
           content: "",
           courseId: "",
           teacherId: "",
         },
         isbuyCourse: false,
       };
     },
     created() {
       this.course.courseId = this.$route.params.id;
       //获取课程详细信息
       this.getCourseInfo();
       this.initComment();
     }

};
</script>
